Rug scrubbing brush



May 5, 1936i I D. E. sMALLEY` 2,039,356

RUG S CRUBBING BRUSH Filed N 0v 29, 1935 i 'Potooted May 5, 1936 UNITEDsTATE's i auc. soaUeamG nnusn Dave E. Smalley, Brazil, Ind.,

nental Car-Na-Var Corporation,

asgnor to Conti- Brazll, Ind.

Application November 29, 1935, sol-lol No. 52,128'

s omnis. '(01.15-180)` This invention relates to the art of scrubbingbrushes and particularly to a brush adapted to be employed in a powerdriven device to give the brush rotary action.

The brush is particularly-adapted to scrub or shampoo rugs and carpetsor the like, although the invention is not to be limited to such use. Aprlmary object of the invention is to provide a structure which willreceive a solution from any suitable source, churn it into a foamy orfrothy condition such as suds and then distribute the solution in thatcondition uniformly throughout a brush and onto the applied surfacevwithoutthrowing the solution in liquid form or otherwise outwardly awayfrom the brush as the brush revolves.

A further important advantage of the inventlon is that a lather Viscreated before the solution reaches the rug thereby preventing soakingof the rug with the solution, and further, by the applying of .a latherto the rug rather than a solution,

a cushion is formed between the brush bristles and i .the rug therebypreventing direct friction between the bristles and the rng. TheVstructure is also designed to cause the suds to be carried outwardlyinto the upper portions of the brush bristles 'by centrifugal action soas to get a good distribution of the suds in the upper zones aroundthose bristlesv where more open spaces abound, the bristles beingsecured by their upper ends in ahead and flaring generally outwardlyfrom theirvengagement with that head whereby the lower portions of thebristles are in contact one with another or rather in contact withadjacent groups of bristles.

A further important advantage of the invention, resides in the fact thatme bristles themselves offer resistance to flow of the suds from thechurning chamber so that the solution entering that chamber maybethoroughly churned before it fully escapes to the bristles.

These and other objects and advantages such as the particular structuralformation, all as set forth in the accompanying .claims, will beapparent to those versed in'the art in the following description of oneparticular form of the invention in which Flg. 1 is a top plan view ofthe brush embodied in my invention;

Fig. 2, a Vertical section through the brush on the line 2-'2 in Fig. 1,and

Flg. 3, a side elevation of the liquid receiving and chuming member.

Like characters of reference indicate like parts throughout the severalviews in the drawing.

I form an annular body ll, here shown as being thereon a driving platetank or source of supply (not shown).

inadjacent tufts so as to leave in effect annular 10 v open spaces |2immediately under the head Ill. Within a central opening through thehead I 0,

I insert a liquid receiving member |3 and secure it to the head by anysuitable means such as by screws |4 as indicated in Fig.1. This member|3 has a fiange 24 extending over onto the top side of the head IO.through which-the screws l4 pass and has a circumferential wall slopingdownwardl'y -and inwardly from the iiange 24. A collar |5 is positionedcentrally within the member |3 having the lower portion thereoffrusto-conicalyin shape with a plurallty of ribs IG on its outer slopingwall carried down under and integrally united with the lower edge of themember lsoas to in effect leave windows |1 between adjacent ribs and theunder 25 side of the member |3. The collar IS flares outwardly by itslower end under and in spaced relation below the lower edge of themember |3 whereby the slope of the frusto-conical wall of the collar ischanged to a horlzontally fiaring direction immediately under the wallof the member |3.

The upper portion of the collar -I5 is in effect an invertedfrusto-conical section' and carries |8 by which the' brush is attachedto any suitable driving machine (not shown). The periphery of theoutwardly fiaring lower end of the collar |5 is in close proximity tothe inner circular row of bristles I I, these bristles extendingdownwardly across the windows H.

A scrubbing or Shampoo solution in liquid form 40 is directed into theannular chamber formed between the member ,|3 and the collar |5 byanysuitable vmeans such as the feed tube |9, this tube being stationary andcoming from any suitable In operation, the brush as described isrevolved in the customary manner while solution is fiowed into thechamber'as indicated. The revolving action causes the ribs IB to strikeand churn up the `solution into afoamy conditionand due to thecentrifugal action set up; this foam or suds is. carried outwardlythrough the windows |1 against the bristles there appearing. Since thereare spaces between the tufts of bristles in each of the rows thereof.the centrlfugal action will cause 5;,

the suds to be carried outwardly between these tufts so that the sudsmay drop and fiow downwardly therebetween and therearound to reach therug or surface being scrubbed. The spaces |2 serve as reservoirs for thesuds feeding down be limited to that exact form beyond the limitationsas may be imposed by the following claims.

I claim:

1. A scrubbing brush comprising an annular body, bristles extendingdownwardly from the body, a liquid receiving member centrally of thebody and a churning member centrally disposed of the first member, saidlast member having a lower outwardly fiaring portion carried below saidbody and in close proximity to surrounding bristles and completing anannular chamber thereabove, said member having a plurality ofdischarging windows therearound opening toward the upper ends of saidbristles under said body and Vertical ribs between the windows,connecting the two members.

2. A scrubbing brush ccmprising an annular body, bristles extendingdownwardly from the body, and a churning member centrally disposed onthe body, said member having a lower outwardly fiaring portion carriedbelow said body and in close proximity to surrounding bristles andcompleting an annuiar Chamber thereabove, said member having dischargingwindows therearound opening toward the upper ends of said bristles'under said body, and a plurality of spaced apart ribs in Vertical planeson the upper surface of said member spacing the member from the body,each of said windows being between a pair of adjacent ribs.

3. A scrubbing brush oomprising an annular body, bristles extendingdownwardly from the body, a liquid-receiving member comprising adownwardly and inwardly sloping circumferential wall centrally of thebody and a churning member centrally disposed of the first member, saidlast churning member having a lower outwardly fiaring` portion carriedbelow said body and in close proximity to surrounding bristles andcompleting an annular chamber thereabove, said member having a pluralityof discharging windows thereamund opening toward the upper ends of saidbristles under said body and Vertical ribs between the windows,connecting the two members, said bristles being arranged in tufts andthe tufts spaced apart in spaced circular rows, said windows discharginginto the spaces between the tufts.

4. For a scrubbing brush. a solution churning and distributing memberhaving an outer wall, a central eollar spaced within the wall, the lowerportion of the collar in effect fiaring downwardly and outwardly underthe member wall, ribs on the upper side of said portion extendingoutwardly into junction with said wall and thereby supporting the collarfrom the Wall, and a window between pairs of adjacent ribs, said wall,and said lower portion.

5. For a scrubbing brush, a solution churning and distributing memberhaving an outer wall, a central collar spaced within the wall, the lowerportion of the collar in effect fiaring downwardly and outwardly underthe member wall, ribs on the upper side of said portion extendingoutwardly into junction with said wall and thereby supporting the collarfrom the wall, and a window between pairs of adjacent ribs, said wall,and said lower portion, said outer wall fiaring outwardly, and saidcollar having an upper portion fiaring upwardly and outwardly towardsaid wall.

6. A scrubbing brush comprising a rotatable annular head; bristlescarried by and extending downwardly from the head; and a solutionchurning and distributing member carried centrally by the head, saidmember forming with the head an annular channel open-at the top forreceiv- -ing therein a solution supply from a stationary feed tube, thechannel having its lower portion substantially V-shaped in Verticalcross-section and being provided with openings at the extreme bottom ofthe channel discharging laterally and outwardly against the innermostsurrounding bristles and a rib extending across the bottom between eachof two adjacent openings and up the inner face of said channel tointerrupt circular travel of said solution around the groove and directthe solution to said openinge.

DAVE E. SMAILEY.

